Directed by Lawrence Moore, a founding member of the British UFO Research Association.
It explores the long history of UFO sightings, noting that while many can be explained rationally (as hoaxes, misidentifications, or natural phenomena), roughly 10% remain genuinely mysterious.
The film examines video footage, photographs, radar evidence, and eyewitness accounts from the U.S., Europe, and—for the first time in such a production, the former Soviet Union.